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is -3√5 an imaginary no. or real no.?

6 Answers

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A real number times a real number is a real number. So the question becomes: are -3 and √5 both real?

Does that help any?
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* \-3√5 is real.
* 3√(-5) is imaginary.
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Real and irrational. It is a point on the real number line.
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It's a real number and a complex number WITHOUT an imaginary part

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\-3 \* sqrt(5) = -6.708203932499369089227521006193828706321855078834577172812691736...
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It is a real number. The negative sign is not in the square root sign. The square root of a negative value gives an imaginary number. Thank you. I hope this helps.
by
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The negative of a square root is real.

The square root of a negative is imaginary.

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